V35

Hey guys, I don't know too much about the exhaust system, but after searching the forums, I've concluded that I have scraped my y-pipe, and tore some threads on the flex joint? Can anyone tell me what the reprocussions are by scraping the flex joints the way I have, and how it will ultimately affect the car?

spazpilot

iTrader: (2)

It might start to leak in time, but if it's not leaking now I wouldn't worry about it.

V35

what exactly would leak from it? and how would I know if it is leaking.

fdao

Exhaust leak. You may hear a hissing sound.

Z350Lover

iTrader: (2)

mine is pretty bad.... badly scrapped as well.... so far, no problem still.... and I actually took a look in the flex section. From inside, it looks like the flexible section of those strows that you can bend around.... so i think it is kinda hard to scrap through the metal too! If I am wrong, someone please correct me here!

cheers,

richie

Z04

iTrader: (15)

actually if the flex area is damaged, you would not really hear a hissing noise. it would sound more like a rasp sound.

wick3d350Z

DUCK TAPE...IT FIXES EVERYTHING..lol J\K

peptidbond

iTrader: (2)

I have a spare one if needed

fdao

Good point. Thanks for the clarification.

Jason@Performance

iTrader: (11)

that is not bad at all...

mine are completely shredded off and no leaks...

(i drive my car hard)

under neither the braided flex joint is a flex pipe... it looks just like a bendy straw... you know the ones that bend... it is very hard to break through that... it can be done... but takes alot more then what you have had done... ill see if i can get a pic of mine once it is up in the air

g356gear

iTrader: (12)

Mine looks exactly the same...It now have a raspy buzz on deceleration at certain rpm's....starting to get annoying

350Now

I got to look a mine now...

ypwpat

By the way, what is the Flex joint purposely serve?

Webiteks

I have been having an ongoing problem with my car at higher RPMSs. My car doesn't push nearly as hard the past 2 weeks than it has been, and I can't accelerate fast at all when I get to 80mph+ like I used to.

I have the NISMO Exhaust with RT Cats and was starting to think it was the RT Cats. . . but everyone is saying that it is not. . . so i started looking around at my exhaust and found this:










Now my problem could be elsewhere, but I first would like to get this fixed. . . does anyone know anyone that has replacements?

OH! Also, my exhaust tone changed quite a bit since this happened. It is a bit louder and annoying. I am most definate that this is the problem becuase I scraped REALLY BAD a few times 2 weekends ago (right before my symptoms came up)

scubasteve

iTrader: (6)

[QUOTE

OH! Also, my exhaust tone changed quite a bit since this happened.It is a bit louder and annoying. I am most definate that this is the problem becuase I scraped REALLY BAD a few times 2 weekends ago (right before my symptoms came up) [/B][/QUOTE]

I would guess that when you scraped really bad, you could have moved the exhaust tubing enough to misalign the gaskets. Since this occured, you oculd have burnt through a gasket, hence the bad sound. This is just a guess, but it wouldn't surprise me if I was correct.

Webiteks

I never would have thought of that. That's a good suggestion!

I'm trying to decide what to do at this point. I'm no mechanic to determine what it might be. I just don't want to take the jump and buy just the Y-Pipe and that not be the problem. . . or buy a whole new exhaust - and that not be the problem. ya know?

scubasteve

iTrader: (6)

Don't buy anything......just unbolt the -pipe from both the mid-tube of the exhaust and the cats......look at the gaskets and you will immediately notice a burnt through gasket. It might be a good idea to buy some better gaskets than what came with the exhaust. I don't have this problem because I had my RT cats welded to my Y-pipe and I have none of this raspiness that people talk about. I think that the RT cats were designed slightly off angle, thus creating creater pressure on the gaskets that join the y-pipe to the cats and back to the mid-pipe. When I installed my stuff, I noticed these problems after things had settled, so I opted for a permanent fix that I am very pleased with. As a result, my flex tubing also sits higher and I don't scrape anymore.....even with the S-tune suspension. Good luck with your adventures!!!

Webiteks

when you say "unbolt the pipe" - are you meaning the Y-Pipe? And when I unbolt it. . . is it hard to get back on? I don't have many tools here. Maybe it'd be best to take it to the performance shop that installed it ?

scubasteve

iTrader: (6)

Yeah, the Y-pipe. It's easy to do, however, It sounds as if you had this installed. Just take it back and have them inspect the gaskets to see if they are burnt through. If so, unbolt all connections in the exhaust from the cats back. Then, start by bolting the Y-pipe to the cats, then the Y-pipe to the mid-pipe, and so forth until all is nice and tight. This should give you a nice fit, given that you don't have any rattling issues with the crossmember that the midpipe goes over. That's another story. All you need is a ratchet and end wrench to remove the exhaust. It's quite easy, but if you had it done elsewhere, I would probably just take it back. Good luck

Webiteks

Thanks !